rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5836/1:b..l P5206/1:b..l P5499/1:b..l P1159/1:b..l P2/1:b..l P189/1:b..l P6504/1:b..l P5617/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=14781, q=684 ncpus=2)
task:dhcpcd          state:R  running task     stack:24136 pid:5617  tgid:5617  ppid:5500   task_flags:0x400140 flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__update_page_owner_free_handle+0x15f/0x460 mm/page_owner.c:272
Code: c4 48 c7 c0 80 db 7a 9a 48 c1 e8 03 48 89 44 24 18 4c 89 64 24 20 66 83 7c 24 04 1f 0f 87 2c 02 00 00 e8 74 d9 8b ff 4c 89 ff <48> 8b 6c 24 28 48 89 ee e8 c4 db 8b ff 4c 39 fd 0f 84 35 02 00 00
RSP: 0018:ffffc9000312eee0 EFLAGS: 00000293
RAX: ffffffff82377dcc RBX: ffff88801de6a160 RCX: ffff8880296f1e00
RDX: 0000000000000000 RSI: 0000000000007b9e RDI: 0000000000000002
RBP: ffff8880296f23dc R08: ffffffff82377ef1 R09: 1ffff11003bcd422
R10: dffffc0000000000 R11: ffffed1003bcd423 R12: 0000000000057b9d
R13: dffffc0000000000 R14: 00000000000015f1 R15: 0000000000000002
 __reset_page_owner+0x89/0x1e0 mm/page_owner.c:309
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2680
 discard_slab mm/slub.c:2720 [inline]
 __put_partials+0x160/0x1c0 mm/slub.c:3189
 put_cpu_partial+0x17e/0x250 mm/slub.c:3264
 __slab_free+0x294/0x390 mm/slub.c:4516
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 kmem_cache_alloc_node_noprof+0x1f2/0x3b0 mm/slub.c:4252
 __alloc_skb+0x1c2/0x480 net/core/skbuff.c:658
 alloc_skb include/linux/skbuff.h:1340 [inline]
 alloc_skb_with_frags+0xc3/0x830 net/core/skbuff.c:6639
 sock_alloc_send_pskb+0x91c/0xa70 net/core/sock.c:2949
 packet_alloc_skb net/packet/af_packet.c:2981 [inline]
 packet_snd net/packet/af_packet.c:3074 [inline]
 packet_sendmsg+0x4322/0x6ed0 net/packet/af_packet.c:3163
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x223/0x270 net/socket.c:727
 sock_write_iter+0x2d9/0x3f0 net/socket.c:1131
 do_iter_readv_writev+0x721/0x9d0 fs/read_write.c:-1
 vfs_writev+0x38d/0xbc0 fs/read_write.c:1055
 do_writev+0x1b8/0x360 fs/read_write.c:1101
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f550fd0de03
RSP: 002b:00007ffc06aa9618 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007ffc06ab98c8 RCX: 00007f550fd0de03
RDX: 0000000000000002 RSI: 00007ffc06aa9630 RDI: 0000000000000005
RBP: 000055cb7173f9c7 R08: 000000009850824a R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000055cb7eb24300 R14: 00007ffc06aa96c8 R15: 00007ffc06aa9678
 </TASK>
task:syz.2.159       state:R  running task     stack:24168 pid:6504  tgid:6489  ppid:5844   task_flags:0x48054c flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x167/0x2f0 arch/x86/include/asm/irqflags.h:-1
Code: c7 44 24 10 00 00 00 00 9c 8f 44 24 10 f7 44 24 10 00 02 00 00 0f 85 fd 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 65 48 8b 45 00 <48> 3b 44 24 38 0f 85 72 01 00 00 48 83 c4 40 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc9000f8b6cc8 EFLAGS: 00000206
RAX: ef945b49e38a1b00 RBX: ffffffff8ed3dfe0 RCX: ef945b49e38a1b00
RDX: 0000000000000000 RSI: ffffffff8e4fd4e5 RDI: ffffffff8ca1b660
RBP: ffffffff9368a020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000246 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0xd5/0x23b0 arch/x86/kernel/unwind_orc.c:479
 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfc/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x76/0x1e0 mm/page_owner.c:308
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2680
 discard_slab mm/slub.c:2720 [inline]
 __put_partials+0x160/0x1c0 mm/slub.c:3189
 put_cpu_partial+0x17e/0x250 mm/slub.c:3264
 __slab_free+0x294/0x390 mm/slub.c:4516
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4207
 skb_clone+0x20c/0x390 net/core/skbuff.c:2056
 do_one_broadcast net/netlink/af_netlink.c:1444 [inline]
 netlink_broadcast_filtered+0x710/0x12a0 net/netlink/af_netlink.c:1522
 netlink_broadcast+0x39/0x50 net/netlink/af_netlink.c:1546
 uevent_net_broadcast_untagged lib/kobject_uevent.c:331 [inline]
 kobject_uevent_net_broadcast+0x38f/0x580 lib/kobject_uevent.c:410
 kobject_uevent_env+0x57d/0x8e0 lib/kobject_uevent.c:608
 device_del+0x7dd/0x9b0 drivers/base/core.c:3873
 device_unregister+0x20/0xc0 drivers/base/core.c:3896
 hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline]
 hci_conn_del+0x8d5/0xc50 net/bluetooth/hci_conn.c:1167
 hci_conn_hash_flush+0x18e/0x240 net/bluetooth/hci_conn.c:2702
 hci_dev_close_sync+0xa8d/0x1260 net/bluetooth/hci_sync.c:5225
 hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
 hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2678
 vhci_release+0x80/0xd0 drivers/bluetooth/hci_vhci.c:665
 __fput+0x3eb/0x9f0 fs/file_table.c:465
 task_work_run+0x253/0x310 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa11/0x27f0 kernel/exit.c:953
 do_group_exit+0x207/0x2c0 kernel/exit.c:1102
 get_signal+0x1696/0x1730 kernel/signal.c:3034
 arch_do_signal_or_restart+0x98/0x840 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f064db8d169
RSP: 002b:00007f064ea85038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: 0000000000018ff8 RBX: 00007f064dda6080 RCX: 00007f064db8d169
RDX: 0000000000018ff8 RSI: 0000200000019680 RDI: 0000000000000003
RBP: 00007f064dc0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f064dda6080 R15: 00007ffd1f49b108
 </TASK>
task:kworker/u8:5    state:R  running task     stack:21032 pid:189   tgid:189   ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0xb5/0x2f0 kernel/locking/lockdep.c:5842
Code: 90 1f c1 0e 00 0f 84 ef 00 00 00 65 8b 05 73 ed c9 11 85 c0 0f 85 e0 00 00 00 65 48 8b 04 25 08 a0 68 93 83 b8 ec 0a 00 00 00 <0f> 85 ca 00 00 00 48 c7 44 24 10 00 00 00 00 9c 8f 44 24 10 4c 8b
RSP: 0018:ffffc90002e2f1e8 EFLAGS: 00000246
RAX: ffff888021308000 RBX: ffffffff8ed3dfe0 RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffffffff816dfbe5 RDI: 1ffffffff1da7bfc
RBP: ffffffff9368a020 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff81aee970 R12: 0000000000000000
R13: 0000000000000002 R14: ffffffff822d46bf R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0xd5/0x23b0 arch/x86/kernel/unwind_orc.c:479
 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2389 [inline]
 slab_free mm/slub.c:4646 [inline]
 kfree+0x198/0x430 mm/slub.c:4845
 ieee80211_ibss_rx_queued_mgmt+0x1b92/0x2e20 net/mac80211/ibss.c:-1
 ieee80211_iface_process_skb net/mac80211/iface.c:1622 [inline]
 ieee80211_iface_work+0x933/0x1100 net/mac80211/iface.c:1676
 cfg80211_wiphy_work+0x2f2/0x490 net/wireless/core.c:435
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac5/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b9/0x940 kernel/kthread.c:464
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:kthreadd        state:R  running task     stack:25152 pid:2     tgid:2     ppid:0      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_is_held_type+0x148/0x1a0 arch/x86/include/asm/irqflags.h:-1
Code: 07 83 f8 01 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 48 41 f7 c5 00 02 00 00 74 01 fb 65 48 8b 45 00 <48> 3b 44 24 08 75 42 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc900000774f0 EFLAGS: 00000206
RAX: 8854f384bb78d200 RBX: 0000000000000001 RCX: 0000000080000000
RDX: 0000000000000000 RSI: ffffffff8e4fd4e5 RDI: ffffffff8ca1b660
RBP: ffffffff9368a020 R08: ffffffff8239451d R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881412b9e00
R13: 0000000000000246 R14: 00000000ffffffff R15: ffffffff8ed3dfe0
 lookup_page_ext mm/page_ext.c:254 [inline]
 page_ext_lookup+0xe2/0x150 mm/page_ext.c:520
 page_ext_iter_begin include/linux/page_ext.h:132 [inline]
 __page_table_check_zero+0x16c/0x510 mm/page_table_check.c:139
 page_table_check_free include/linux/page_table_check.h:41 [inline]
 free_pages_prepare mm/page_alloc.c:1263 [inline]
 __free_frozen_pages+0xdfc/0x10a0 mm/page_alloc.c:2680
 discard_slab mm/slub.c:2720 [inline]
 __put_partials+0x160/0x1c0 mm/slub.c:3189
 put_cpu_partial+0x17e/0x250 mm/slub.c:3264
 __slab_free+0x294/0x390 mm/slub.c:4516
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 __do_kmalloc_node mm/slub.c:4330 [inline]
 __kmalloc_noprof+0x238/0x4d0 mm/slub.c:4343
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 lsm_blob_alloc security/security.c:684 [inline]
 lsm_cred_alloc security/security.c:701 [inline]
 security_prepare_creds+0x53/0x360 security/security.c:3241
 prepare_creds+0x4b4/0x6f0 kernel/cred.c:242
 copy_creds+0x109/0x9c0 kernel/cred.c:312
 copy_process+0x9ec/0x3d10 kernel/fork.c:2293
 kernel_clone+0x242/0x930 kernel/fork.c:2844
 kernel_thread+0x1c2/0x250 kernel/fork.c:2906
 create_kthread kernel/kthread.c:487 [inline]
 kthreadd+0x621/0x850 kernel/kthread.c:847
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:kworker/1:2     state:R  running task     stack:24872 pid:1159  tgid:1159  ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: events_power_efficient gc_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:seqcount_lockdep_reader_access+0x1e2/0x230 include/linux/seqlock.h:75
Code: f7 4d 85 ff 75 16 e8 8d d9 89 f7 eb 15 e8 86 d9 89 f7 e8 71 04 f7 01 4d 85 ff 74 ea e8 77 d9 89 f7 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 66 43 c7 44 25 09 00 00 43 c6 44 25 0b
RSP: 0018:ffffc90003de7900 EFLAGS: 00000293
RAX: ffffffff8a397dc9 RBX: 0000000000000000 RCX: ffff888027165a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003de79b0 R08: ffffffff8a397d9f R09: 1ffffffff20bfbee
R10: dffffc0000000000 R11: fffffbfff20bfbef R12: 1ffff920007bcf20
R13: dffffc0000000000 R14: 0000000000000046 R15: 0000000000000200
 nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:333 [inline]
 gc_worker+0x31b/0x1420 net/netfilter/nf_conntrack_core.c:1534
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac5/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b9/0x940 kernel/kthread.c:464
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:dhcpcd          state:R  running task     stack:24368 pid:5499  tgid:5499  ppid:1      task_flags:0x400140 flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:memset+0xf/0x20 arch/x86/lib/memset_64.S:38
Code: 44 88 1f e9 ae 96 df f4 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 49 89 f9 40 88 f0 48 89 d1 <f3> aa 4c 89 c8 e9 82 96 df f4 0f 1f 80 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffc900049d7480 EFLAGS: 00000202
RAX: ffffc900049d7f00 RBX: ffffc900049d75b0 RCX: 000000000000000f
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc900049d75b1
RBP: dffffc0000000000 R08: ffffc900049d75bf R09: ffffc900049d75b0
R10: dffffc0000000000 R11: fffff5200093aeb8 R12: ffffc900049d7560
R13: ffffc900049d8000 R14: ffffffff8c301d73 R15: ffffc900049d0000
 unwind_next_frame+0xb46/0x23b0 arch/x86/kernel/unwind_orc.c:592
 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfc/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x76/0x1e0 mm/page_owner.c:308
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2680
 discard_slab mm/slub.c:2720 [inline]
 __put_partials+0x160/0x1c0 mm/slub.c:3189
 put_cpu_partial+0x17e/0x250 mm/slub.c:3264
 __slab_free+0x294/0x390 mm/slub.c:4516
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:385
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4331 [inline]
 __kmalloc_noprof+0x28e/0x4d0 mm/slub.c:4343
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
 tomoyo_encode+0x26f/0x540 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x59e/0x5e0 security/tomoyo/realpath.c:283
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_number_perm+0x245/0x790 security/tomoyo/file.c:723
 security_file_ioctl+0xc6/0x2a0 security/security.c:2913
 __do_sys_ioctl fs/ioctl.c:900 [inline]
 __se_sys_ioctl+0x46/0x160 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f550fd0dd49
RSP: 002b:00007ffc06ab9538 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000055cb7eb22a50 RCX: 00007f550fd0dd49
RDX: 00007ffc06ab9540 RSI: 0000000000008921 RDI: 0000000000000011
RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000000035
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc06ab9540
R13: 000055cb7172bf88 R14: 000055cb7eb22a50 R15: 000055cb7eb0b200
 </TASK>
task:udevd           state:R  running task     stack:24576 pid:5206  tgid:5206  ppid:1      task_flags:0x400140 flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:kasan_byte_accessible+0x16/0x20 mm/kasan/generic.c:201
Code: 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df 0f b6 04 07 <3c> 08 0f 92 c0 e9 3b d4 e2 fe 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90004dbf478 EFLAGS: 00000216
RAX: 0000000000000000 RBX: ffffffff8ed3dfe0 RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffffffff82377cbb RDI: 1ffffffff1da7bfc
RBP: ffffffff9368a020 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff81aee970 R12: 0000000000000000
R13: 0000000000000002 R14: ffffffff82377cbb R15: ffffffff8ed3dfe0
 __kasan_check_byte+0x14/0x40 mm/kasan/common.c:556
 kasan_check_byte include/linux/kasan.h:399 [inline]
 lock_acquire+0x89/0x2f0 kernel/locking/lockdep.c:5840
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 __update_page_owner_free_handle+0x4b/0x460 mm/page_owner.c:271
 __reset_page_owner+0x89/0x1e0 mm/page_owner.c:309
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2680
 discard_slab mm/slub.c:2720 [inline]
 __put_partials+0x160/0x1c0 mm/slub.c:3189
 put_cpu_partial+0x17e/0x250 mm/slub.c:3264
 __slab_free+0x294/0x390 mm/slub.c:4516
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 __do_kmalloc_node mm/slub.c:4330 [inline]
 __kmalloc_noprof+0x238/0x4d0 mm/slub.c:4343
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
 tomoyo_encode+0x26f/0x540 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x59e/0x5e0 security/tomoyo/realpath.c:283
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x2be/0x640 security/tomoyo/file.c:822
 security_inode_getattr+0x130/0x330 security/security.c:2377
 vfs_getattr fs/stat.c:243 [inline]
 vfs_statx_path+0x23/0x2b0 fs/stat.c:283
 vfs_statx+0x13a/0x200 fs/stat.c:349
 vfs_fstatat+0xdc/0x150 fs/stat.c:368
 __do_sys_newfstatat fs/stat.c:532 [inline]
 __se_sys_newfstatat fs/stat.c:526 [inline]
 __x64_sys_newfstatat+0x11f/0x1a0 fs/stat.c:526
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb9911825f4
RSP: 002b:00007fff97139c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb9911825f4
RDX: 00007fff97139c68 RSI: 00007fff9713a0f8 RDI: 00000000ffffff9c
RBP: 00007fff97139cf8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff9713a0f8
R13: 00007fff97139c68 R14: 000056012bd3b910 R15: 0000000000000000
 </TASK>
task:syz-executor    state:R  running task     stack:19416 pid:5836  tgid:5836  ppid:5830   task_flags:0x400140 flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:100 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
RIP: 0010:unwind_next_frame+0x759/0x23b0 arch/x86/kernel/unwind_orc.c:494
Code: 28 00 74 08 4c 89 f7 e8 65 7e bf 00 4c 89 7c 24 20 49 8b 06 48 89 44 24 08 e9 65 07 00 00 4d 89 fd 4d 89 fe 48 89 e8 4c 29 f0 <48> 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 1c 46
RSP: 0018:ffffc90002f8f668 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff907b2e70 RCX: ffffffff907b2e74
RDX: ffffffff90f720d2 RSI: ffffffff8ca1b640 RDI: ffffffff8ca1b600
RBP: ffffffff907b2e6c R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff82229f03
R13: ffffffff907b2e6c R14: ffffffff907b2e6c R15: ffffffff907b2e6c
 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfc/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x76/0x1e0 mm/page_owner.c:308
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2680
 discard_slab mm/slub.c:2720 [inline]
 __put_partials+0x160/0x1c0 mm/slub.c:3189
 put_cpu_partial+0x17e/0x250 mm/slub.c:3264
 __slab_free+0x294/0x390 mm/slub.c:4516
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4207
 getname_flags+0xb6/0x530 fs/namei.c:146
 getname include/linux/fs.h:2852 [inline]
 getname_maybe_null include/linux/fs.h:2859 [inline]
 vfs_fstatat+0x43/0x150 fs/stat.c:363
 __do_sys_newfstatat fs/stat.c:532 [inline]
 __se_sys_newfstatat fs/stat.c:526 [inline]
 __x64_sys_newfstatat+0x11f/0x1a0 fs/stat.c:526
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f501258b97a
RSP: 002b:00007ffe4a29f4b8 EFLAGS: 00000286 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f501260e08c RCX: 00007f501258b97a
RDX: 00007ffe4a29f4e0 RSI: 00007ffe4a29f570 RDI: 00000000ffffff9c
RBP: 00007ffe4a29f570 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000286 R12: 00007ffe4a2a0600
R13: 00007f501260e08c R14: 000000000003381b R15: 00007ffe4a2a0640
 </TASK>
task:kworker/u8:3    state:R  running task     stack:23816 pid:52    tgid:52    ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:246 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x11/0x90 kernel/kcov.c:321
Code: 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 65 48 8b 0c 25 08 a0 68 93 <65> 8b 05 f8 43 a5 11 25 00 01 ff 00 74 10 3d 00 01 00 00 75 57 83
RSP: 0018:ffffc90000bd7730 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880226c1e00
RDX: ffff8880226c1e00 RSI: 0000000000000000 RDI: 0000000000000040
RBP: ffff888056225c38 R08: ffffffff8b735b0e R09: ffffffff85049459
R10: 000000000000000c R11: 0000000000000000 R12: 0000000000000004
R13: ffff888056225c38 R14: 0000000000000004 R15: ffff8880562230e0
 ieee80211_mandatory_rates+0xfe/0x230 net/wireless/util.c:64
 ieee80211_update_sta_info net/mac80211/ibss.c:998 [inline]
 ieee80211_rx_bss_info net/mac80211/ibss.c:1100 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1581 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x12b8/0x2e20 net/mac80211/ibss.c:1608
 ieee80211_iface_process_skb net/mac80211/iface.c:1622 [inline]
 ieee80211_iface_work+0x933/0x1100 net/mac80211/iface.c:1676
 cfg80211_wiphy_work+0x2f2/0x490 net/wireless/core.c:435
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac5/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b9/0x940 kernel/kthread.c:464
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:syz.2.126       state:R  running task     stack:20648 pid:6392  tgid:6392  ppid:5844   task_flags:0x40064c flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__preempt_count_add kernel/rcu/tree.c:732 [inline]
RIP: 0010:rcu_is_watching+0x4/0xb0 kernel/rcu/tree.c:735
Code: 8e e8 20 19 98 03 eb cd 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <41> 57 41 56 53 65 ff 05 10 eb bf 11 e8 3b ea 87 0a 89 c3 83 f8 08
RSP: 0018:ffffc9000c5cea40 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff920018b9d64 RCX: ffff888025a09e00
RDX: 0000000000000000 RSI: ffffffff8e4fd4e5 RDI: ffffffff8ca1b660
RBP: ffffc9000c5ceb58 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9000c5ceb20
R13: dffffc0000000000 R14: ffffffff8209affd R15: ffffffff816dfbc8
 rcu_read_lock include/linux/rcupdate.h:842 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0xe7/0x23b0 arch/x86/kernel/unwind_orc.c:479
 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfc/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x76/0x1e0 mm/page_owner.c:308
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 free_unref_folios+0xe0e/0x17f0 mm/page_alloc.c:2737
 folios_put_refs+0x70a/0x800 mm/swap.c:992
 folio_batch_release include/linux/pagevec.h:101 [inline]
 shmem_undo_range+0x595/0x1820 mm/shmem.c:1125
 shmem_truncate_range mm/shmem.c:1237 [inline]
 shmem_evict_inode+0x29d/0xa80 mm/shmem.c:1365
 evict+0x4fb/0x9b0 fs/inode.c:810
 __dentry_kill+0x20d/0x630 fs/dcache.c:660
 shrink_kill+0xa9/0x2c0 fs/dcache.c:1105
 shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1132
 shrink_dcache_parent+0xcd/0x3c0 fs/dcache.c:-1
 do_one_tree+0x23/0xe0 fs/dcache.c:1595
 shrink_dcache_for_umount+0xb4/0x180 fs/dcache.c:1612
 generic_shutdown_super+0x6a/0x2d0 fs/super.c:620
 kill_anon_super fs/super.c:1237 [inline]
 kill_litter_super+0x76/0xb0 fs/super.c:1247
 deactivate_locked_super+0xc6/0x130 fs/super.c:473
 cleanup_mnt+0x422/0x4c0 fs/namespace.c:1435
 task_work_run+0x253/0x310 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa11/0x27f0 kernel/exit.c:953
 do_group_exit+0x207/0x2c0 kernel/exit.c:1102
 get_signal+0x1696/0x1730 kernel/signal.c:3034
 arch_do_signal_or_restart+0x98/0x840 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 irqentry_exit_to_user_mode+0x7e/0x250 kernel/entry/common.c:231
 exc_page_fault+0x5f8/0x920 arch/x86/mm/fault.c:1541
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f064db8d171
RSP: 002b:0000000000000030 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f064dda6080 RCX: 00007f064db8d169
RDX: 0000000000000000 RSI: 0000000000000030 RDI: 0000000000000600
RBP: 00007f064dc0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f064dda6080 R15: 00007ffd1f49b108
 </TASK>
task:jbd2/sda1-8     state:R  running task     stack:24320 pid:5168  tgid:5168  ppid:2      task_flags:0x240040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0x60/0x2f0 kernel/locking/lockdep.c:5829
Code: 24 38 0f 1f 44 00 00 65 8b 05 c0 b1 c9 11 83 f8 08 0f 83 b4 01 00 00 89 c0 48 0f a3 05 e9 f0 c0 0e 73 16 e8 82 c6 09 00 84 c0 <75> 0d f6 05 0a d8 aa 0e 01 0f 84 9b 01 00 00 83 3d aa 1f c1 0e 00
RSP: 0018:ffffc9000f8ef008 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff8ed3dfe0 RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffffffff8ca1b640 RDI: ffffffff8ca1b600
RBP: ffffffff9368a020 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff81aee970 R12: 0000000000000000
R13: 0000000000000002 R14: ffffffff81aee8aa R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0xd5/0x23b0 arch/x86/kernel/unwind_orc.c:479
 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
 save_stack+0xfc/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x76/0x1e0 mm/page_owner.c:308
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1262 [inline]
 __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2680
 discard_slab mm/slub.c:2720 [inline]
 __put_partials+0x160/0x1c0 mm/slub.c:3189
 put_cpu_partial+0x17e/0x250 mm/slub.c:3264
 __slab_free+0x294/0x390 mm/slub.c:4516
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4151 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4207
 alloc_buffer_head+0x2a/0x290 fs/buffer.c:2997
 jbd2_journal_write_metadata_buffer+0xc5/0xd80 fs/jbd2/journal.c:348
 jbd2_journal_commit_transaction+0x19eb/0x6170 fs/jbd2/commit.c:663
 kjournald2+0x41e/0x7b0 fs/jbd2/journal.c:201
 kthread+0x7b9/0x940 kernel/kthread.c:464
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:kworker/u8:1    state:R  running task     stack:23592 pid:13    tgid:13    ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_release+0x25d/0x3e0 kernel/locking/lockdep.c:5891
Code: 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 65 48 8b 03 48 3b 44 24 28 0f 85 82 01 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d <e9> 69 3f 71 ff ff c3 48 8d 4c 24 20 4c 89 ef 48 8b 6c 24 10 89 ee
RSP: 0018:ffffc90000127460 EFLAGS: 00000286
RAX: 3f8619ebb5df1a00 RBX: ffffc90000127540 RCX: 0000000000000003
RDX: dffffc0000000000 RSI: ffffffff8e4fd4e5 RDI: ffffffff8ca1b660
RBP: dffffc0000000001 R08: ffffc90000127d20 R09: ffffc90000127590
R10: dffffc0000000000 R11: fffff52000024eb4 R12: ffffc90000127550
R13: dffffc0000000000 R14: ffffc90000127d30 R15: ffffffff816dfbc8
 rcu_lock_release include/linux/rcupdate.h:341 [inline]
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0x1a9f/0x23b0 arch/x86/kernel/unwind_orc.c:680
 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2389 [inline]
 slab_free mm/slub.c:4646 [inline]
 kmem_cache_free+0x197/0x410 mm/slub.c:4748
 skb_kfree_head net/core/skbuff.c:1056 [inline]
 skb_free_head net/core/skbuff.c:1070 [inline]
 skb_release_data+0x67a/0x8b0 net/core/skbuff.c:1097
 skb_release_all net/core/skbuff.c:1162 [inline]
 __kfree_skb net/core/skbuff.c:1176 [inline]
 sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1214
 kfree_skb_reason include/linux/skbuff.h:1279 [inline]
 kfree_skb include/linux/skbuff.h:1288 [inline]
 ieee80211_iface_work+0x28b/0x1100 net/mac80211/iface.c:1678
 cfg80211_wiphy_work+0x2f2/0x490 net/wireless/core.c:435
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac5/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b9/0x940 kernel/kthread.c:464
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:syz.0.177       state:R  running task     stack:21032 pid:6550  tgid:6550  ppid:5834   task_flags:0x400640 flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:page_ext_iter_next_fast_possible include/linux/page_ext.h:80 [inline]
RIP: 0010:page_ext_iter_next include/linux/page_ext.h:155 [inline]
RIP: 0010:__page_table_check_zero+0x279/0x510 mm/page_table_check.c:139
Code: 00 41 8b 1e 31 ff 89 de e8 f4 0c 8a ff 85 db 0f 85 c3 01 00 00 4b 8d 1c 2c 48 89 de 48 81 e6 ff 7f 00 00 31 ff e8 77 0d 8a ff <48> 89 d8 48 25 ff 7f 00 00 74 37 e8 87 08 8a ff 48 b8 00 00 00 00
RSP: 0018:ffffc9001e446648 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 000000000004129f RCX: ffff88802b6f9e00
RDX: ffff88802b6f9e00 RSI: 000000000000129f RDI: 0000000000000000
RBP: ffff88801d45d160 R08: ffffffff82394ea9 R09: 1ffff11003a8ba35
R10: dffffc0000000000 R11: ffffed1003a8ba36 R12: 0000000000000000
R13: 000000000004129f R14: ffff88801d45d1ac R15: 0000000000000001
 page_table_check_alloc include/linux/page_table_check.h:33 [inline]
 post_alloc_hook+0x207/0x240 mm/page_alloc.c:1718
 prep_new_page mm/page_alloc.c:1725 [inline]
 get_page_from_freelist+0x352b/0x36c0 mm/page_alloc.c:3652
 __alloc_frozen_pages_noprof+0x211/0x5b0 mm/page_alloc.c:4934
 alloc_pages_mpol+0x339/0x690 mm/mempolicy.c:2301
 folio_alloc_mpol_noprof+0x36/0x70 mm/mempolicy.c:2320
 shmem_alloc_folio mm/shmem.c:1854 [inline]
 shmem_alloc_and_add_folio+0x490/0x1070 mm/shmem.c:1893
 shmem_get_folio_gfp+0x655/0x1800 mm/shmem.c:2533
 shmem_get_folio mm/shmem.c:2639 [inline]
 shmem_write_begin+0x17e/0x3a0 mm/shmem.c:3289
 generic_perform_write+0x32b/0xa10 mm/filemap.c:4102
 shmem_file_write_iter+0xf9/0x120 mm/shmem.c:3464
 __kernel_write_iter+0x43b/0x990 fs/read_write.c:617
 dump_emit_page fs/coredump.c:885 [inline]
 dump_user_range+0x940/0xef0 fs/coredump.c:959
 elf_core_dump+0x4098/0x4af0 fs/binfmt_elf.c:2128
 do_coredump+0x22c5/0x3260 fs/coredump.c:759
 get_signal+0x13ed/0x1730 kernel/signal.c:3019
 arch_do_signal_or_restart+0x98/0x840 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 irqentry_exit_to_user_mode+0x7e/0x250 kernel/entry/common.c:231
 exc_page_fault+0x5f8/0x920 arch/x86/mm/fault.c:1541
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fbaad18d171
RSP: 002b:0000000000000030 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fbaad3a6080 RCX: 00007fbaad18d169
RDX: 0000000000000000 RSI: 0000000000000030 RDI: 0000000000000600
RBP: 00007fbaad20e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fbaad3a6080 R15: 00007ffd53eabcc8
 </TASK>
rcu: rcu_preempt kthread starved for 11127 jiffies! g14781 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:26440 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0x163/0x360 kernel/sched/core.c:6860
 schedule_timeout+0x15b/0x2b0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2e1/0x1340 kernel/rcu/tree.c:2046
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2248
 kthread+0x7b9/0x940 kernel/kthread.c:464
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.14.0-syzkaller-13524-gf4d2ef48250a #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:81
Code: be ce df f4 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 13 a1 17 00 f3 0f 1e fa fb f4 <e9> 93 ce df f4 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000197dc0 EFLAGS: 00000286
RAX: a45771f64093e400 RBX: ffffffff8197af7e RCX: ffffffff8c30995c
RDX: 0000000000000001 RSI: ffffffff8e69c664 RDI: ffffffff8ca1b660
RBP: ffffc90000197f20 R08: ffff8880b8732b5b R09: 1ffff110170e656b
R10: dffffc0000000000 R11: ffffed10170e656c R12: 1ffff92000032fd2
R13: 1ffff11003ad9b40 R14: 0000000000000001 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125096000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe4a29ed08 CR3: 0000000011f44000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:748
 default_idle_call+0x74/0xb0 kernel/sched/idle.c:117
 cpuidle_idle_call kernel/sched/idle.c:185 [inline]
 do_idle+0x22e/0x5d0 kernel/sched/idle.c:325
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:423
 start_secondary+0xfe/0x100 arch/x86/kernel/smpboot.c:315
 common_startup_64+0x13e/0x147
 </TASK>